Maker Pro
Maker Pro

TV station logo- can we do away with it during recording ?

Hello folks- I do a lot of recording of TV programs strictly for home
and family entertainment. The station's logo always gets recorded on
the tape or DVD along with the program. Is there any way we can prevent
it from getting recorded, during or after recording ? Many thanks
 
A

Art

Jan 1, 1970
0
Get enough consumers to boycott the stations until they take the flippin
things off their broadcast materials. Or invest in a good quality eraser??
Sorry but these nuisances are here to stay, hopefully the broadcasters begin
to understand that we always do not need to be reminded that we are watching
their produce, even bad or good, we still seem to watch , Eh.
 
N

NSM

Jan 1, 1970
0
| Hello folks- I do a lot of recording of TV programs strictly for home
| and family entertainment. The station's logo always gets recorded on
| the tape or DVD along with the program. Is there any way we can prevent
| it from getting recorded, during or after recording ? Many thanks

If you were very clever you could invert it and superimpose that image but
there'll still be a visible mark.

N
 
J

James Sweet

Jan 1, 1970
0
Hello folks- I do a lot of recording of TV programs strictly for home
and family entertainment. The station's logo always gets recorded on
the tape or DVD along with the program. Is there any way we can prevent
it from getting recorded, during or after recording ? Many thanks

Download the show from the internet, there's people who record it straight
off the network satelite feed without those damned logos.
 
E

Eric

Jan 1, 1970
0
built something to superimpose your own image on top of it. either your own
logo or something like minutes:seconds gone since the start of recording.

From Eric




Hello folks- I do a lot of recording of TV programs strictly for home
and family entertainment. The station's logo always gets recorded on
the tape or DVD along with the program. Is there any way we can prevent
it from getting recorded, during or after recording ? Many thanks
 
Eric said:
built something to superimpose your own image on top of it. either your own
logo or something like minutes:seconds gone since the start of recording.

From Eric
Thanks to all for the responses. This is to Eric: do you know
exactly how to do that ? Your idea makes a lot of sense I wish I knew
how to do that(impose another image on top of the logo so it won't
show). Thanks.

Bill
 
J

James Sweet

Jan 1, 1970
0
Eric said:
built something to superimpose your own image on top of it. either your own
logo or something like minutes:seconds gone since the start of recording.

That'd be more obnoxious than the stupid logo is in the first place. They're
getting worse and worse too, bigger, animated, often obscuring the program.
I ditched cable a few years ago when all the channels started doing this, I
just get DVD's from Netflix now instead and download any TV shows I want.
 
N

NSM

Jan 1, 1970
0
| That'd be more obnoxious than the stupid logo is in the first place.
They're
| getting worse and worse too, bigger, animated, often obscuring the
program.
| I ditched cable a few years ago when all the channels started doing this,
I
| just get DVD's from Netflix now instead and download any TV shows I want.

Up in Canada the local station picks up a US station and adds a logo.
Sometimes there's a band of this crap across the bottom of the screen
obscuring a subtitle.

N
 
E

Eric

Jan 1, 1970
0
Hi Bill

Some years ago I made a sync pulse monitor for looking at the VCR back
tension post using a few LM555 timers, the horizontal sync was delayed 1/2
line and the frame sync was delayed 1/2 a frame, it worked well on the TV I
modified,

You might be able to do a similar project, except instead of delaying the
sync, you short the video to ground.

The 555 timers when used as one shot timers, it might seem a bit of a fiddle
not sure what temperature drift will do, you would have 2 line, and two
frame, timers one each to start the blanking and one each to end, getting
the timing down to about 5-10 microseconds for the width blanking might need
a bit of good timing. so if the logo was on the right side you would have
one timer at about 40µS and another at say 50µS so you would get blanking
in-between the two timers firing, and gate those with the frame timers.

I am glad you are keen to make one, and not me.


From Eric





built something to superimpose your own image on top of it. either your own
logo or something like minutes:seconds gone since the start of recording.

From Eric
Thanks to all for the responses. This is to Eric: do you know
exactly how to do that ? Your idea makes a lot of sense I wish I knew
how to do that(impose another image on top of the logo so it won't
show). Thanks.

Bill
 
B

Bill Jeffrey

Jan 1, 1970
0
If you short the video to ground, doesn't that just create a blank
(black or white, I've forgotten which) rectangle where the logo used to
be? I don't think that's what the OP had in mind. He (and all of us)
would like to REMOVE the logo, so we can see the original program
content that the logo obscures.

Bill Jeffrey
======================
 
J

James Sweet

Jan 1, 1970
0
Bill Jeffrey said:
If you short the video to ground, doesn't that just create a blank
(black or white, I've forgotten which) rectangle where the logo used to
be? I don't think that's what the OP had in mind. He (and all of us)
would like to REMOVE the logo, so we can see the original program
content that the logo obscures.

Bill Jeffrey


Yes, that's all it would do, and unfortunatly the only way to remove the
logo is fancy and time consuming processing with a computer. It's far easier
to obtain the original material elsewhere, and push for the removal of logos
by writing to stations and/or not watching them anymore. Sooner or later
they'd get the message if enough people cared about it.
 
E

Eric

Jan 1, 1970
0
trouble with lawyers they have no tolerance.

--


From Eric

5Km/h difference up there means 27Km/h difference down here.



If you short the video to ground, doesn't that just create a blank
(black or white, I've forgotten which) rectangle where the logo used to
be? I don't think that's what the OP had in mind. He (and all of us)
would like to REMOVE the logo, so we can see the original program
content that the logo obscures.

Bill Jeffrey
======================
 
J

JURB6006

Jan 1, 1970
0
I've given this some thought now.

You must use DVR circuitry so there are no time base errors. Sooner or later
you'll find a blank field and frame with the logo. You must then genlock the
DVR to the source during recording, and after totally suppressing the sync you
mix it inverted with the recording signal.

You should be able to null it out, and that's the only way to do it. It should
be gone except for when the signal is excatly at black level or near 100 IRE.
Down real close to the black level is likely to be clipped off by an analog VCR
anyway. Same with whites, what does an analog VCR clip at, about 85-90 IRE ? Or
is that dynamic ?

Regardless, it's the only way to do it right, but if you actually use a DVR to
make your recording as well you might see it when that area of the screen is
very bright or very dark. It's probably the best your going to do.

Another problem is figuring out how to get the DVR doing the nulling to genlock
while playing.

Incedentally, if you're doing this for piracy purposes forget it, you'll need
to remove the VITS and VIR to do that, there is still quite a bit of info in
there, and if you don't have accurate timing you'll lose the closed caption.
That may or may not matter. Within that vertical interval there is also info on
where you are (not your address, just the city) and sometimes what cable
company it came from.

On the logo, either you'll have to use a grey background or whatever and
readjust the video level, or find or design a varible output impedance stage to
mix it. This is an analog signal so might be a bit tough, and if the logo has
any colors in it you would do well to have about 10 Mhz bandwidth. Not hard
these days, but the impedance circuit might be a bit hard to come by. You might
have to design it, I don't know if an IC exists to do what is needed.

JURB
 
Top